舰船破舱进水过程时域模拟

舰船破舱进水过程的时域模拟是解决未来舰船破损沉没时间预报、可供救援时间预报、救援措施选择等诸多新挑战的惟一可行方式。目前国内对舰船破损稳性的研究并没有涉及舱内空气对进水的影响。本文对破舱进水过程时域模拟的研究方法进行了探讨。应用Fluent软件对大量二维及三维计算模型进行了破舱进水的时域模拟;探讨空气流对进水过程的影响。对船舶破损口处进水速度的变化进行讨论和探讨。得到结论:在特定情形下,对于空气流的计算模拟必须考虑在内,并且提出了1种减少计算域的研究方案。这些探讨对破舱进水时域模拟研究方法的选择有一定借鉴意义。

Time-domain simulation of the flooding process of damaged warships

The time-domain simulation of the flooding process of damaged warships is the only way to settle new challenges in the future,such as sinking time prediction of the damaged warships,available time prediction for rescue and selection of rescue measures.So far,research in China in damage stability hasn’t involved the impact to the flooding process which bring by the air in cabins.Methods for time-domain simulation of the flooding process were explored in this paper.A large number of two-dimensional and three-dimensional models have been simulated in time-domain using Fluent.Impact to the flooding process from air in cabins was explored.What’s more,corresponding discussion and exploration to changes of flooding velocity of the entrance was also presented.Conclusion can be drawn that simulation of the air in cabins must be taken into consideration in certain circumstances.A research program to reduce the computational domain has also been proposed.These will be meaningful to the selection of time-domain simulation methods of the flooding process of damaged warships.